US3487374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic-film input-output element
Assignee: Ind Bull General Electric SA S
•
Filing: 1967-06-05
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Granted: 1969-12-30
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Expires: 1987-06-05
Abstract
No abstract record available.
Inventors
- 👤 Jacques Pierre Leon Droux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:49
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/1808; G11B15/20; G11B5/00; G11B5/008; G11B5/00813; G11B5/00847; G11B5/0086; G11B5/48; G11B5/52; G11B5/53; G11B5/531; G11B5/532
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2648589A
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US2901734A
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US2722676A
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US2921293A
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US2856462A
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US2829208A
Cited
US2994857A
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US3157867A
Cited
US3095473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |